PCT AG-NP 6.029 What must be done to request rectification of such an error and when?

6.029. What must be done to request rectification of such an error and when? The applicant must request the designated Office to rectify the error and must prove, to the satisfaction of that Office, that the international filing date accorded by the receiving Office is incorrect owing to an error made by the receiving Office, or that a priority claim has erroneously been considered not to have been made by the receiving Office or the International Bureau. The request should be made on entering the national phase.